DirectionsPlace cubed potatoes in a large Ziploc bag. Drizzle with olive oil. Add salt, pepper & garlic salt. Seal bag & shake until potatoes are well coated with olive oil & seasonings. Take aluminum foil & make several layers going vertical & horizontal. Pour potatoes from Ziploc bag onto the center of your aluminum foil. Add slices of butter all over. Take the foil & fold all the edges to the top. It is very important to seal the foil really good. You can place the "pocket" directly on the grill. Be sure to turn & move the "pocket" around. When your meat is ready, your potatoes should also be done. To serve: flip the pocket over so that the smooth side of the foil is facing up. Take a knife & cute a large "X" on that side. Carefully peel back the foil edges & serve just like that! We also do the same process to make peppers & onions for grilled Italian sausages.